1319975999

素因数分解:

${\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 1553911200

約数和(自身を除く): 233935201

約数列:

[1, 17, 19, 37, 73, 89, 289, 323, 629, 703, 1241, 1387, 1513, 1691, 2701, 3293, 5491, 6497, 10693, 11951, 21097, 23579, 25721, 28747, 45917, 51319, 55981, 62567, 110449, 123443, 203167, 240389, 400843, 488699, 780589, 872423, 951677, 1063639, 1877633, 2098531, 4086613, 4567391, 14831191, 18081863, 35675027, 69472421, 77645647, 1319975999]

約数ペア:

[(1, 1319975999), (17, 77645647), (19, 69472421), (37, 35675027), (73, 18081863), (89, 14831191), (289, 4567391), (323, 4086613), (629, 2098531), (703, 1877633), (1241, 1063639), (1387, 951677), (1513, 872423), (1691, 780589), (2701, 488699), (3293, 400843), (5491, 240389), (6497, 203167), (10693, 123443), (11951, 110449), (21097, 62567), (23579, 55981), (25721, 51319), (28747, 45917)]